INSTRUMENT / SEA TEMPERATURE
Tobago Cays Water Temperature
Updated Sun 15:57 (America/St_Vincent)
Saint Vincent and the Grenadines · Forecast updated Nov 8, 2026, 15:57 UTC
Current Sea Temperature
29.4°C
84.9°F
Very warm water
Valid Nov 8, 2026, 15:57 (America/St_Vincent). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
0.3°C above
The typical November average is 29.1°C (84.4°F) from the historical baseline.
Recent trend
Holding fairly steady
Seven-day average: 29.3°C, versus 29.3°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions or replace the snorkel forecast.
Typical Sea Temperature Over the Year
In the historical baseline for Tobago Cays, typical monthly averages range from about 27.1°C (80.8°F) in February to 30.1°C (86.2°F) in September.
Over the past 30 days, the average sea temperature in Tobago Cays has been 29.3°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Tobago Cays, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 26.9–27.9°C | 27.6°C / 81.7°F |
| February | 26.5–27.8°C | 27.1°C / 80.8°F |
| March | 26.9–28.1°C | 27.5°C / 81.5°F |
| April | 27.1–28.4°C | 27.8°C / 82.0°F |
| May | 28.1–28.9°C | 28.4°C / 83.1°F |
| June | 27.9–29.1°C | 28.6°C / 83.5°F |
| July | 28.5–29.3°C | 28.9°C / 84.0°F |
| August | 29.2–30.0°C | 29.6°C / 85.3°F |
| September | 29.6–30.6°C | 30.1°C / 86.2°F |
| October | 29.6–30.4°C | 30.1°C / 86.2°F |
| November | 28.6–29.6°C | 29.1°C / 84.4°F |
| December | 27.7–28.6°C | 28.3°C / 82.9°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (12.63, -61.37). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Water temperature by month
Each month uses the 2023–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Tobago Cays in January
Typical January water temperature near Tobago Cays is 27.6°C (81.7°F), with yearly monthly means from 26.9–27.9°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: December 28.3°C · February 27.1°C.
Explore Tobago Cays sea temperature in January, including swim comfort and month comparisons →
Tobago Cays in February
Typical February water temperature near Tobago Cays is 27.1°C (80.8°F), with yearly monthly means from 26.5–27.8°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: January 27.6°C · March 27.5°C.
Explore Tobago Cays sea temperature in February, including swim comfort and month comparisons →
Tobago Cays in March
Typical March water temperature near Tobago Cays is 27.5°C (81.5°F), with yearly monthly means from 26.9–28.1°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: February 27.1°C · April 27.8°C.
Explore Tobago Cays sea temperature in March, including swim comfort and month comparisons →
Tobago Cays in April
Typical April water temperature near Tobago Cays is 27.8°C (82.0°F), with yearly monthly means from 27.1–28.4°C.
Swimming and snorkeling: warm water. Most people are comfortable in swimwear or a light rash guard.
Adjacent months: March 27.5°C · May 28.4°C.
Explore Tobago Cays sea temperature in April, including swim comfort and month comparisons →
Tobago Cays in May
Typical May water temperature near Tobago Cays is 28.4°C (83.1°F), with yearly monthly means from 28.1–28.9°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: April 27.8°C · June 28.6°C.
Explore Tobago Cays sea temperature in May, including swim comfort and month comparisons →
Tobago Cays in June
Typical June water temperature near Tobago Cays is 28.6°C (83.5°F), with yearly monthly means from 27.9–29.1°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: May 28.4°C · July 28.9°C.
Explore Tobago Cays sea temperature in June, including swim comfort and month comparisons →
Tobago Cays in July
Typical July water temperature near Tobago Cays is 28.9°C (84.0°F), with yearly monthly means from 28.5–29.3°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: June 28.6°C · August 29.6°C.
Explore Tobago Cays sea temperature in July, including swim comfort and month comparisons →
Tobago Cays in August
Typical August water temperature near Tobago Cays is 29.6°C (85.3°F), with yearly monthly means from 29.2–30.0°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: July 28.9°C · September 30.1°C.
Explore Tobago Cays sea temperature in August, including swim comfort and month comparisons →
Tobago Cays in September
Typical September water temperature near Tobago Cays is 30.1°C (86.2°F), with yearly monthly means from 29.6–30.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: August 29.6°C · October 30.1°C.
Explore Tobago Cays sea temperature in September, including swim comfort and month comparisons →
Tobago Cays in October
Typical October water temperature near Tobago Cays is 30.1°C (86.2°F), with yearly monthly means from 29.6–30.4°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: September 30.1°C · November 29.1°C.
Explore Tobago Cays sea temperature in October, including swim comfort and month comparisons →
Tobago Cays in November
Typical November water temperature near Tobago Cays is 29.1°C (84.4°F), with yearly monthly means from 28.6–29.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: October 30.1°C · December 28.3°C.
Explore Tobago Cays sea temperature in November, including swim comfort and month comparisons →
Tobago Cays in December
Typical December water temperature near Tobago Cays is 28.3°C (82.9°F), with yearly monthly means from 27.7–28.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: November 29.1°C · January 27.6°C.
Explore Tobago Cays sea temperature in December, including swim comfort and month comparisons →
Forecast archive (growing)
These values come from hourly forecasts SnorkelForecast has stored. They cover only months with records and do not replace the historical baseline.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 27.9°C / 82.2°F | 28.1°C / 82.5°F | 28.4°C / 83.1°F |
| July | 28.1°C / 82.6°F | 28.4°C / 83.0°F | 28.7°C / 83.7°F |
| August | 28.5°C / 83.3°F | 29.0°C / 84.2°F | 29.6°C / 85.3°F |
| September | 28.9°C / 84.0°F | 29.4°C / 85.0°F | 29.9°C / 85.8°F |
| October | 29.1°C / 84.4°F | 29.4°C / 84.9°F | 29.7°C / 85.5°F |
| November | 29.1°C / 84.4°F | 29.3°C / 84.7°F | 29.6°C / 85.3°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3863 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Tobago Cays
Uninhabited cays with a turtle sanctuary and a horseshoe reef lagoon.
- Area
- Grenadines
Tobago Cays Water Temperature: Common Questions
What is the water temperature in Tobago Cays today?
The current sea surface temperature near Tobago Cays is 29.4°C (84.9°F). Over the last 30 days, the average has been 29.3°C.
When is the water warmest in Tobago Cays?
The water is typically warmest in September, at around 30.1°C (86.2°F) in the 2023–2025 historical baseline.
When is the water coldest in Tobago Cays?
The water is typically coldest in February, at around 27.1°C (80.8°F) in the same historical baseline.
Can you swim in Tobago Cays today?
At 29.4°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Tobago Cays.
View Snorkel Forecast →